The new numerical sort is doing what it's supposed to do, and I've now added handling for the infixes with repeated roots, but it turns out that we still need to do the initial grouping of forms first, and then use this approach as a secondary sort within the groups. I've also coded an additional pass through an entry sequence which calculates first relative and then absolute values for indents, based on eliminating the longest common initial subsequence and comparing what's left, but whether that will prove to be useful or not remains to be seen. Tomorrow I'll start integrating the two approaches (old grouping and new sorting within groups, except for compounds which already have their own subsort).